Home / 65,514.12-90,406.80-37,216.68

Finding the Fourth Proportional to 65,514.12, 90,406.80 and 37,216.68

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Solution

The fourth proportional to 65,514.12, 90,406.80 and 37,216.68 is: 51,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,514.12 : 90,406.80 = 37,216.68 : x
  2. Step 2: Convert to fraction form
    65,514.12/90,406.80 = 37,216.68/x
  3. Step 3: Cross multiply
    65,514.12x = 90,406.80 × 37,216.68
  4. Step 4: Simplify right side
    65,514.12x = 3,364,640,945.42
  5. Step 5: Solve for x
    x = 3,364,640,945.42/65,514.12
  6. Step 6: Final answer
    x = 51,357.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.